BS EN ISO 6978-2:2005 - Natural gas. Determination of mercury. Sampling of mercury by amalgamation on gold/platinum alloy

BS EN ISO 6978-2:2005

Natural gas. Determination of mercury. Sampling of mercury by amalgamation on gold/platinum alloy

Status : Current   Published : December 2003

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This part of ISO 6978 specifies a method for the determination of total mercury content of pipeline quality natural gas using a sampling method by amalgamation on gold/platinum (Au/Pt) alloy thread. This method is applicable to the sampling of raw natural gas when no condensation is present. At atmospheric pressure, this method is suitable for the determination of mercury content within the range of 0,01 µg/m 3 to 100 µg/m 3 in natural gas samples. At higher pressures (up to 8 MPa), this sampling method is suitable for the determination of mercury contents within the range of 0,001 µg/m 3 to 1 µg/m 3. The collected mercury is determined by measuring the absorbance or fluorescence of mercury vapour at 253,7 nm.

NOTE

ISO 6978‑1 gives a sampling method suitable for the determination of mercury contents in natural gas by chemisorption on iodine-impregnated silica gel for the working range of 0,1 µg/m 3 to 5 000 µg/m 3 for sampling at pressures up to 40 MPa.




Standard NumberBS EN ISO 6978-2:2005
TitleNatural gas. Determination of mercury. Sampling of mercury by amalgamation on gold/platinum alloy
StatusCurrent
Publication Date17 December 2003
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)ISO 641
ReplacesBS 7678:1993, ISO 6978:1992
International RelationshipsEN ISO 6978-2 Corr 2 (10/16) I,ISO 6978-2:2003/COR 1:2004,ISO 6978-2:2003/Cor 2:2006
Amended ByAMD 16345
Corrigendum, March 2017; Amendment, July 2006
DescriptorsChemical analysis and testing, Gas analysis, Sampling methods, Mercury, Test equipment, Atomic absorption spectrophotometry, Testing conditions, Determination of content, Natural gas, Specimen preparation, Test specimens, Adsorption
ICS75.060
Title in FrenchGaz naturel. Determination de la teneur en mercure. Echantillonage du mercure par amalgamation sur alliage or/platine
Title in GermanErdgas. Bestimmung von Quecksilber. Probenahme von Quecksilber durch Amalgamierung an einer Gold/Platin-Legierung
CommitteePTI/15
ISBN978 0 580 96182 3
PublisherBSI
FormatA4
DeliveryYes
Pages28
File Size549 KB
Price£182.00


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